Support for outlet boxes



HL CHARM SUPPORT FOR OUTLET BOXES 4Filed Feb. 20, 1922.

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atented .lune .24, 1924.

I-IYlVIAN CHARM, OF DORCHESTER, MASSACHUSETTS.

SU'PPORT FOR OUTLET BOXES.

Application filed February 20, 1922.

To all 'whom t may concern:

Be it known that I, HYMAN CHARM, a citizen of the United States of America, and a yresident of Dorchester, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improve ments in Supports for Outlet Boxes, of which the following is a specification.

This invention relates to devices for supporting outlet boxes of electric lighting flx tures, and has for its object the provision of a simple device which may be inserted readily through an opening in the ceiling and then adjusted to prevent displacement thereof when the outlet box has been secured in position thereon.

The invention consists of a threaded tubular member having ears clamped thereto in adjusted position, which ears are adapted to support L-shaped arms, the longer arms of which are adapted to be disposed parallel with said member when being inserted in the opening in the ceiling and subsequently to be disposed perpendicular to said member and rest on the laths of the ceiling.

The invention further consists in certain novel features of construction and arrangement of parts which will be understood readily by reference to the description of the drawings and to the claims to be hereinafter given.

For the purpose of illustrating the invention, one preferred form thereof is shown' in the drawings, this form having been found to give satisfactory and reliable re-` sults, although it is,to be understood that Vthe various instrumentalities of which `the invention consists can be variously arranged and organized, and that the invention is not limited to the precise arrangement and or" ganization of the instrumentalities as herein shown and described, except as required by the scope of the appended claims.

Of the drawings:

Fig. 1, represents a vertical section ofV a support embodying the principles of the present invention, show n'supportingl an outlet box on a ceiling.

Fig. 2, represents a plan of the support, and

Fig. 3, represents an elevation of the same.

Similar characters indicate like parts throughout the several figures of the drawing.

Serial No. 537,735.

In the drawings 10 is an outlet box of usual n construction which it is desired to clamp in position against a ceiling 11, and 12 is an enclosing casing which may be of any design.

In the. ceiling 11 is formed an opening 13 through which the electric wires are fed to the outlet box 10 and from this box to the lamps supported in any well known manner from the casing 12. This outlet'box 10 is provided with a central opening 14 through which the threaded tubular member 15 extends, this member having on its lower ends the nuts 16, 17 by which the outlet box 10 may be clamped to the ceiling 11 when the upper end of said tubular member has been properly positioned. This positioning of the member 15 is accomplished inthe following manner.

Two-straps 18 are provided each having midway of their length a curved portion 19 the inner face of which is provided with a threadto engage the thread of the tubular i'nember 15.

The outer ends of these straps 18 form ears 20, 21 the former having a greater thickness than the latter. Y

Through each ear 21 extends a clamping screw v22 the shank. of which is threaded into the ear 20.

These ears 2O and 21 are separated from each other as shown in Fig. 2 when the straps 18have been clamped to the meinber 15.

` Between these ears 20, 21 and between said member 15 and the shank of the screws 22 are loosely disposed the fiat sided L- shaped ends 23 of the arms 241.

These arms may be moved about the screws 22 into positions parallel and adjacent to the member 15 and when in this position they may be easilyV inserted through the opening 13 in the ceiling 1l and then One dilliculty found to eXist in supports now in general use is that the supporting member for the outlet box is not adjustable and consequently in some cases the lower end projects too far and in other cases not tar enough to accommodate itself to various lforms oi outlet boxes and diiilerent thicknesses of ceilings.

rlhis objection is wholly overcome in the device herein shown and described for by adjusting the screws 22 the .pressure ol' the straps 18 upon .the member 115 may be relieved and then the member 15 may be adjusted relatively to said `straps 18 to any desired degree and the adjustment :having been made, the screws 22 are again turned sutliciently to rigidly clamp the straps 18 to said member 15 yand prevent further :rotation thereof holding the 4same in adjusted position while the nuts 16, 17 lare being positioned on the lower end ot said member 15.

rlhe adjustment of the member 15 relatively to the straps 1S maybe made readily al'ter thearms '2li are in theV positions shown .in Fig. 1 by first ,tilting the device in one direction and then in the opposite direction to penmit theoppositely disposed screws 22 being turned by :a screw driver inserted from beneath through the opening 13 in the oeiling 10.

This makes a very simple but most elicotive device for sup-porting` outlet boxes which may be adjusted lto accommodate itself to various forms and styles of :outlet boxes and :to varied thicknesses of ceilings..

It :is believed that Ithe operation Vand .many advantages of the invention will be understood from the foregoing description.

Having :thus described my invention; I claim:

1. ln a support tor outlet bones, a tubular member; a device adjustable thereon provid-ed with .oppositely :dis-posed ears projecting' laterally therefrom; L-shaped arms mounted to move .about ypivots von said ears to cause one branch of each arm to bear against the periphery oft said ytrbular meming an outlet box on the lower end ot said member.

8. In a support for outlet boxes, a tubular member; two straps on opposite sides of said member; .means `for claniping` said straps to said member; arms normally supported by but disconnected from said clamping means, the main portions of said arms beingl adapted to be moved from positions parallel to said member to positions perpendicular thereto; and means for support-ing an outlet box on the lower end of said member.

t. In a support tor outlet boxes, a tubular threaded member; two straps on opposite sides olsai-d member having,` threaded portions coacting withthe thread otsa-me lmember; means for clampingsaid straps to'said member; arms normally supported by 'but disconnected from said clamping` means,fthe main portions 'ozsai-d arms beingadapted to be moved trom positions parallel to `said member to positions perpendicular thereto; and means for supporting lan outlet box on thelo-wer end ot said member.

5. In a support for outlet boxes, a cylindrical member; straps `adjustable relatively thereto and having oppositely disposed ears projecting` laterally therefrom; means for clamping to a ceiling` ,an outlet box on the lower end of `said member; clamping screws .extending through said ears vand arms supported by but disconnected 'from said screws thc `main portions of said arms being adapted to be moved from positions parallel .to said member to positions perpendicular fthereto.

6. In a support for outletboxes, a cylindrical threaded member; straps provided with threads fcoacting Awith the thread of said member and having Aoppositely disposed ears projecting laterally there-trom; means for clamping to a ceiling an outlet box on the lowerend of-said menrber; cla-mping-screws extending through said ears; and arms supported by but disconnected from said screws the main portions .ot-said arms being` adapted to be moved trom positions parallel to said member to 1positions perpendicular thereto.

Signed by me at 746 Oil-d South Bldg., Boston7 Mass. this 16th day of February, 1922.

HYMAN CHARM.

Vitnesses l/VALrnR E. LOMBARD, 'NATHAN C. LOMBARD. 

